Motorcycle



FIG. 1 is a front view of a motorcycle showing my new design.

FIG. 2 is a rear view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a plan view thereof.

FIG. 6 is a front perspective view thereof; and,

FIG. 7 is a rear perspective view thereof.

The bottom view is omitted because it does not include any ornamental features of my new design. 

The ornamental design for a motorcycle, as shown and described. 